Directions (1–5): What will come in place of the question mark (?) in each of the following series?
Q1. 14, 8, 9, 14.5, 30, ?
(a) 75
(b) 76
(c) 60
(d) 65
(e) None of these
Q2. 20, 29, 54, 103, 184, ?,
(a)310
(b)350
(c) 305
(d)310
(e) None of these
Q3. 7, 8, 18, 57, ?, 1165
(a)250
(b)234
(c)230
(d)232
(e) None of these
Q4. 5, 7, 18, 47, 103, ?
(a)195
(b)210
(c)200
(d)190
(e) None of these
Q5. 77, 85, 69, 101, 37, ?
(a)180
(b)165
(c)170
(d)120
(e) None of these
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ANSWER
S1. Ans.(b)
Sol.
Pattern is ×0.5+1,×1+1,×1.5+1,×2+1,×2.5+1,
30×2.5+1=76
S2. Ans.(c)
Sol.
Pattern is +9,+25,+49,+81,+121
184+121=305
S3. Ans.(d)
Sol.
Pattern is series is×1+1,×2+2,×3+3,×4+4
57×4+4=232
S4. Ans.(a)
Sol.
103+92=195
S5. Ans.(b)
Sol.
Pattern is +8,-16,+32,-64,+128
37+128=165
